linux-kernel - Re: [PATCH v4 03/10] perf session: define bytes_transferred and bytes

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Message-ID: <4b6b1e87-b16f-5044-8ea1-615f86264101@linux.intel.com>
Date:   Thu, 28 Feb 2019 23:23:16 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 03/10] perf session: define bytes_transferred and
 bytes_compressed metrics


On 28.02.2019 21:47, Arnaldo Carvalho de Melo wrote:
> Em Thu, Feb 28, 2019 at 12:02:09PM +0300, Alexey Budankov escreveu:
>>
>> Define bytes_transferred and bytes_compressed metrics to calculate
>> comp_ratio=transferred/compressed in the end of the data collection.
>>
>> bytes_transferred accumulates the amount of bytes that was captured from
>> the mmaped kernel buffers for compression. bytes_compressed accumulates
>> the amount of bytes that was received after applying compression to
>> move to a storage.
> 
> Where is the code that updates these metrics? Follow up patch?

Yes, it is in [PATCH v4 07/10], specifically, record__zstd_compress() function.

Thanks,
Alexey

<SNIP>